Fire shutter



H. G.l YOUNG FIRE SHUTTER Mch 124,` .19.31.

Filed Jan. 16, 1930 Patented Mar.V 24, 17931 HERMAN GEORGE YOUNG, OF SWEGO, ILLINOIS .i

FIRE snowman t Application sied January 16, 1930. serial 110.421,270.

`The object vof this invention is to provide easilyfoperated and efficient means whereby ya door or window opening maybe closed in theevent of a lire so that the flames will be confined and may be easily extinguished.

The invention is illustrated in the accompanying dra-wing and will be hereinafter fully set forth. f l In the drawing: v Figure l is an elevation of a fire shutter embodying my invention, thel closed position of the shutter being shown by full lines and a partly opened position being indicated by ldotted lines,

Fig. 2 is a transverse vertical section on the line 2-2 of Fig. l, and

' Fig. 3 is a horizontal detail section on theline'fS-B of Fig. l.

In carrying out theinvention, a frame is erected upon the window or door sill 1 and said lfra-me consists of parallel vertical bars or vstandards 2 whichare arranged in pairs at the opposite sides'of the door or window openingras will be understood, the pairs of standards being connected at their upper ends by cross bars?) and 4 disposed, respectively,k on the inner and the outer sides of the standardsrfwhereby to evenly distribute the strain. To the inner side of one of the Y V standards, I secure a plurality of` blocksL 5 whichextend from top to. bottom thereof in regularly spaced relation and increase in thickness from top to bottoni, as shown inl Fig. 2. rPivotally supported upontlie standl ard by a rivet orbolt 6, passing through the respectively adjacent block are leaves 7 which are adapted to extend across the door or window opening and are so disposed thattlie lower edge of each leaf will overlap the upl per edge of the subjacent leaf.` kThis overlapping arrangement eifectually closes all gaps which would otherwise form' between adjacent leaves but causes'the leavesto gradually and successively shift in location form one standard toward the 4other standard, as shown in Fi 2, and for this reason the several fulcruin locks'. 5 are successively increased in thickness from the top portion to the bottom block. At the pivoted end of each leaf, there is secured theretoV at the f A lire shutter comprising a pair of stand-4 upper youter'corner a lever 8 andto the `outer ends of all they levers is pivoted a link or operating bar 9, the ends of the upper levers being pivoted at one side ofthe link while l the ends of the lower levers are pivotedy at the oppositeside of the link so as toV com? pensate for. the shifting of theleaves from one .standard toward the other standard; The upper end 10 of thelinkor *operatingv bar 9 has an opening therethrough Lto facil-v itate, the attachment of a fusible retainer whereby the leaves may be normally held in open position but will automatically close when the retainer is melted.

It will be readily understood that normally the shutter is open, the link or operatingk bar 9 being swung downwardly and being disposed close tothe frame while the-leaves will -be in 1an uprightposition and substantially housedbetween the standards constituting the frame and if desired a weight may be hung upon the operating bar so that the leaves will be firmly held in the open position.` Should a iire occur so that the closing of the shutter would"v become necessary, the .operating bar 9 is pushed upwardly and the impulse there- Y by transmitted yto the several levers 8 will. swing the leaves 7 about their respective pivots and bring tliein at once into the closed overlapping,position shown iii Figs. l and 2 of the drawing. .v Alltlie parts of the structure will, of course, be made of metal of suliicient weight to resist comparatively high temperaf tures and the leaves will be "so balanced that they will swing easily into the closed posi- 780i tion when the use of the shutter becomes neee'ssary. 1

The shutter may7 of course, bel used in connection with any opening but is designed. pri-y marily for use at the openings between projection rooms and auditoriuins of motion picture theaters.Y i n f lHaving thus described the invention, I claim:

ards7 a plurality of fulcruiny blocks secured on the inner side of one of the standards and successively increasing in thickness from the n uppermost' block to .thel lowerinost block, 10o

2 msm 1 1 leaves pvoted upon said blocks whereby they may extend from the standards to close a Window or door opening, levers Ysecured' to the leaves at the pivoted ends thereof, and an 0peratng bar pvoted to the free ends of all the levers. n

In testimony whereof I aix my signature.

HERMAN Y GEORGE YOUNG. 5.] 

